GC-MS Determination of 4 Environmental Hormones in Water Sample with Dispersive Liquid-Liquid Microextraction
摘 要
以四氯乙烯作萃取剂,以四氢呋喃为分散剂对水样中4种环境激素甲草胺、乙草胺、三唑酮和三唑醇进行分散液液微萃取。提取液用气相色谱-质谱法测定。4种环境激素的质量浓度与其相应峰面积均在0.05~100 μg·L-1范围内呈线性关系。甲草胺、乙草胺、三唑酮和三唑醇的检出限(3S/N)分别为0.016,0.015,0.023,0.032 μg·L-1。在0.2,2.0 mg·kg-1两个添加水平下进行回收试验,4种环境激素的回收率在86.8%~118%之间,测定值的相对标准偏差(n=6)在2.1%~6.2%之间。
Abstract
Contents of 4 environmental hormones, including acetochlor, alachlor, triadimefon and triadimenol in water sample were extracted by dispersive liquid-liquid microextraction with tetrachloroethylene as extraction solvent and tetrahydrofuran as dispersant. The extract obtained was determined by GC-MS. Linear relationships between values of mass concentration and peak area of the 4 hormones were kept in the same range of 0.05-100 μg·L-1, with limits of detection (3S/N) of 0.016 μg·L-1 for acetochlor, 0.015 μg·L-1 for alachlor, 0.023 μg·L-1 for triadimefon and 0.032 μg·L-1 for triadimenol respectively. Tests for recovery and precision were tested by addition of 0.2 and 2.0 mg·kg-1 of standard solutions, and analyzed by the proposed method, values of recovery in the range of 86.8%-118% and values of RSD′s (n=6) in the range of 2.1%-6.2% were obtained.
中图分类号 O657.63
所属栏目 工作简报
基金项目 国家“十一五”重大科技专项子课题(2008ZX07313-007-3);国家自然科学基金项目(50938005)
收稿日期 2012/2/15
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备注周懿(1986-),女,江苏常州人,硕士研究生,研究方向为环境监测。
引用该论文: ZHOU Yi,ZHANG Li-jun,ZHANG Zhan-en. GC-MS Determination of 4 Environmental Hormones in Water Sample with Dispersive Liquid-Liquid Microextraction[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2013, 49(3): 316~319
周懿,张丽君,张占恩. 分散液液微萃取-气相色谱-质谱法测定水样中4种环境激素[J]. 理化检验-化学分册, 2013, 49(3): 316~319
被引情况:
【1】金党琴,周祥祥,陈庆娣,厉柏嘉, "多壁碳纳米管-十二烷基磺酸钠修饰玻碳电极测定乙草胺",理化检验-化学分册 52, 56-60(2016)
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【3】SERESHTI H, KHOJEH V, SAMADI S. Optimization of dispersive liquid-liquid microextraction coupled with inductively coupled plasma-optical emission spectrometry with the aid of experimental design for simultaneous determination of heavy metals in natural waters[J]. Talanta, 2011,83:885-890.
【4】LIANG Pei, XU Jing, LI Qian. Application of dispersive liquid-liquid microextraction and high-performance liquid chromatography for the determination of three phthalate esters in water samples[J]. Analytica Chimica Acta, 2008,609:53-58.
【5】BERIJANI S, ASSADI Y, ANBIA M. Dispersive liquid-liquid microextraction combined with gas chromatography-flame photometric detection Very simple, rapid and sensitive method for the determination of organophosphorus pesticides in water[J]. Journal of Chromatography A, 2006,1123:1-9.
【6】DAI Li-ping,CHENG Jing, MATSADIQ G. Dispersive liquid-liquid microextraction based on the solidification of floating organic droplet for the determination of polychlorinated biphenyls in aqueous samples[J]. Anal Chim Acta, 2010,674:201-205.
【7】ZACHARIS C K, TZANAVARAS P D, ROUBOS K. Solvent-based de-emulsification dispersive liquid-liquid microextraction combined with gas chromatography-mass spectrometry for determination of trace organochlorine pesticides in environmental water samples[J]. Journal of Chromatography A, 2010,1217:5896-5900.
【8】CHEN Hao, CHEN Rui-wen, LI Sheng-qing. Low-density extraction solvent-based solvent terminated dispersive liquid-liquid microextraction combined with gas chromatography-tandem mass spectrometry for the determination of carbamate pesticides in water samples[J]. Journal of Chromatography A, 2010,1217:1244-1248.
【9】孙胜龙.环境激素与人类未来[M].北京:化学工业出版社, 2005:13-20.
【10】郭华,杨红.乙草胺及其它酰胺类除草剂在环境中的降解与迁移[J].农药, 2006,45(2):87-91.
【11】王祥云,章虎,何红梅,等.气相色谱法测定葱中百菌清和三唑酮残留量[J].理化检验-化学分册, 2009,45(8):8-10.
【12】吴岩,康庆贺,刘永.凝胶渗透色谱与固相萃取净化-气相色谱质谱法测定粮谷中酰胺类除草剂残留量[J].理化检验-化学分册, 2010,46(9):9-12.
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